NO. 1 TAYLOR: PACIFIC MARINE ALGAE 215 



face view irregularly disposed, angular, 9-15 {x in diameter with thin firm 

 walls; cystocarps minute, numerous and scattered over the blade except 

 for the attenuate base, enclosed in a thin somewhat distended pericarp 

 about 150 /A diam., projecting somewhat on both surfaces but more on the 

 side where the ostiole is located, the cystocarp mass about 80 [x. diam., 

 enclosed in a filamentous investment, the spores mutually compressed, 

 9-11 IX diam. 



These plants have much the habit of K. angustata Setchell & Gardner 

 (1927, p. 78) as figured by Dawson (1943, p. 285, pi. 68, fig. 1), but 

 are narrower, thinner, with smaller cystocarps, and a firmer medulla. 



Mexico: Is. Revilla Gigedo, frequent as dredged from 41-84 meters' 

 depth at sta. 924 near I. Soccoro, no. 39-67 (cystocarpic, TYPE), 18 

 Mar. 1939. 



Kallymenia Setchellii n. sp.^^o 

 Plate 69, Fig. 2 



Plants from a small holdfast and a short compressed stalk arising to 

 a height of 10 cm or more, dull red, fleshy, adhering well when young, 

 simple or branched several times near the base to simple or slightly lobed 

 foliaceous segments 5-7 cm broad, the base cuneate to obtuse; thickness 

 (soaked up) to 150 /x, showing a thin filamentous medulla of refractive 

 filaments, an inner cortex of colorless cells with one large layer near the 

 medulla and one or two smaller ones without, the assimilative outer cortex 

 of one, occasionally two layers of small cells which in surface view are 

 rounded angular, 4-11 fx diam.; spermatangia scattered in patches over 

 large areas of the blades of male plants, which appear rather blotchy, 2-4 

 to a surface cortex cell, most commonly three, and about 2.5 ix diam. from 

 the surface, 5-6 /a tall in section; cystocarps numerous, scattered except 

 near the lower part of the blade, 0.25-0.75 mm diam., projecting strongly 

 on both sides of the blade, v/ithout special modification of the cortex over 

 them, but eventually developing an ostiole on one face, the small carpo- 

 spores surrounded by a thin layer of the filamentous medulla, divided into 

 more or less obscure masses with skeins of sterile tissue between them. 



Ecuador: Archipielago de Colon, dredged from 27 meters' depth off 

 Post Office Bay, I. Santa Maria, no. 34-292B (TYPE), 19 Jan. 1934. 



129 Kallymenia Setchellii n. sp.— Plantae stipite brevi, altitudine ad 10 cm vel 

 plus, succulentae, simplices aut foliaceo-lobatae e regione basali, segmentis 5-7 cm 

 latitudine, basi cuneata ad obtusam; crassitudine (madefactis) ad 150 \x\ dioeciae, 

 spermatangiis 2-4 per omnem cellulam superficiei super magnas partes laminae; 

 cystocarpis multis, 0.25-0.75 mm diam., utrumque latus laminae distendentibus. 

 Planta typica in loco dicto Post Office Bay, I. Santa Maria, Ecuador, legit W. R 

 Taylor no. 34-292B, 19 Jan. 1934. 



